how to install level 2 ev charger



Have you recently purchased an electric vehicle (EV) or are thinking about making the switch to one? If so, one of the key things you'll need to consider is investing in a Level 2 EV charger. Level 2 chargers are a significant upgrade from the standard Level 1 chargers that come with most electric vehicles. They offer faster charging times, convenience, and added versatility. In this article, we will guide you through the installation process of a Level 2 EV charger, ensuring that you have a clear understanding of the steps involved and the tools required.

Choosing the Right Location for Your Charger

Before diving into the installation process, it's important to choose an appropriate location for your Level 2 EV charger. Consider the following factors when making your decision:

Accessibility: Look for a location that allows you to easily connect your EV to the charger without any obstacles in the way. It should also be easily accessible from your vehicle's parking spot.

Proximity to Power Supply: Since Level 2 chargers require a higher voltage, it's essential to install it near a power supply. Locate an area close to your main electrical panel or consider hiring a professional electrician to extend the power line if necessary.

Protection from the Elements: Shield your charger from extreme weather conditions such as heavy rain or direct sunlight. Look for a location that offers some form of protection, like a carport or a covered parking space.

Wall Mounting or Standalone Unit: Decide whether you want to install a wall-mounted charger or a standalone unit. Wall-mounted chargers are typically preferred as they take up less space and offer a neater installation.

Once you have chosen the perfect location for your Level 2 EV charger, it's time to move on to the installation process.

Ensuring Electrical Safety

Before undertaking any electrical installation work, it is crucial to prioritize safety. Here are a few guidelines to follow:

Turn off the Power: Start by turning off the power to the circuit where the charger will be installed. Locate the breaker in your main electrical panel that controls that particular circuit and switch it off.

Wear Protective Gear: Always wear the appropriate protective gear, including safety goggles and insulated gloves, to safeguard yourself against electric shock.

Testing the Circuit: Use a voltage tester to ensure that the circuit is indeed de-energized before proceeding with the installation. This step is essential to protect yourself and your equipment.

Choosing the Correct Wiring

A crucial aspect of installing a Level 2 EV charger is selecting the right type and gauge of wiring to ensure optimal performance and safety. Here are the key factors to consider:

Wire Gauge: Ensure you choose a wire gauge suitable for the charger's current rating and the length of the run. It is crucial to consult local electrical codes and the charger's manufacturer specifications to determine the correct wire gauge.

Wire Type: Use copper wire that is approved for electrical installations. Copper is superior to aluminum in terms of conductivity and durability.

Running the Wiring

With the electrical safety measures in mind and the appropriate wiring selected, it's time to run the wiring for your Level 2 EV charger. Follow these steps:

Plan the Route: Identify the best path for running the wire from the charger's designated location to your main electrical panel. Consider factors such as distance, accessibility, and existing obstacles.

Prepare the Wiring: Strip the insulation off the wiring and attach the appropriate connectors to the ends. Use wire nuts or other approved methods to make secure connections.

Run the Wiring: Mount conduits, if necessary, to protect the wiring from physical damage. Secure the wiring along the planned route, ensuring it is neat and organized.

Connecting to the Electrical Panel

Now that you have run the wiring, it's time to connect it to your main electrical panel. Follow the steps below:

Locate the Breaker: Identify an available breaker slot in your electrical panel that is appropriate for the charger's current rating. Refer to the charger's manual or consult a professional electrician to ensure proper breaker selection.

Shut Off Power: Before making any connections, turn off the main power at the electrical panel. This step is crucial to avoid electric shock while working with live wiring.

Make the Connections: Connect the hot wire to the breaker and the neutral wire to the neutral bus bar. If you have a ground wire, connect it to the grounding electrode system. Double-check all connections to ensure they are secure.

Connecting the Charger

The final step in installing your Level 2 EV charger is connecting it to the wiring you have installed. Here's what you need to do:

Prepare the Charger: Carefully read the charger's installation manual to familiarize yourself with the specific requirements. Ensure that all power to the charger is switched off before proceeding.

Mounting the Charger: If you have chosen a wall-mounted charger, use the appropriate mounting hardware to secure it to the wall. Ensure that it is level and well-supported.

Wiring Connection: Take the insulated wiring you ran earlier and connect it to the appropriate terminals on the charger according to the manufacturer's instructions. Ensure that the connections are secure, and there is no exposed wiring.

Testing and Start-up

Testing the Connections: Before you power up the charger, double-check all the wiring connections to ensure they are correct and secure. Use a multimeter to test for proper voltage readings.

Powering Up the Circuit: After confirming the correct wiring, turn on the circuit breaker in your main electrical panel to supply power to the charger. Monitor the charger for any unusual sounds or smells during the initial start-up.

Testing the Charger: Plug in your electric vehicle and test the charger's functionality. Ensure that your vehicle is receiving the appropriate charge and monitor the charging time to ensure it aligns with the charger's specifications.


Installing a Level 2 EV charger is a worthwhile investment that provides convenience and faster charging times for electric vehicle owners. While the process may seem daunting at first, following the steps outlined in this article can help you install your charger with confidence. Remember to prioritize safety, consult local electrical codes, and, if necessary, seek professional assistance.

Whether you choose a wall-mounted charger or a standalone unit, ensure it is installed in a suitable location that offers easy accessibility, proximity to a power supply, and protection from the elements. Proper wire gauge and type selection are crucial for optimal charger performance and safety. Take the necessary precautions when running the wiring and making electrical connections, and always refer to the charger's installation manual for specific instructions.


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